Answer this question truthfully
### Question: What to expect if I have Hypoplastic left heart syndrome  (Outlook/Prognosis)?
### Response: If left untreated, hypoplastic left heart syndrome is fatal. Survival rates for the staged repair continue to rise as surgical techniques and postoperative management improve. Survival after the first stage is more than 75%.
The size and function of the right ventricle are important in determining the child's outcome after surgery.